Meh after 17 I didnt grow much taller then that. Non-natural way, I have no idea but I doubt there is one. If thats what you mean
Good nutrition and good sleep can help you but at the end it all up to genetic and your DNA.
I was 5'10 aged 16, and 6'2" at 20. You probably have not stopped growing.
(I still have these numbers from my "Starting Work" medical, and my "Starting College" medical - so I'm reasonably sure they are correct.)